根据所给的中文提示
，仔细阅读句子，然后填出单词的正确形式。
1. There are many ______（乘客）waiting for train at Dingxiao Railway Station every day.
2. As we know________（星期天）is the first day of a week.
3. Do you know the _______ （首都）of America ?
4. How can we _____________ （筹钱）money for the poor children ?
5. Our country is a _______________（发展中的）country.